Most of my competitive racing experience is in 10th scale off-road and my team of racers did everything we could to eliminate bump steer. I ran some incredibly crazy steering geometries on my 2wd and 4wd cars because I was generally the worst guy on my team and so I was testing things for others and whether the track was slick or had tons of grip we hated bump steer. Never knew bump to be my friend.
CT is right on regarding toe theory and general practice.
Theory is great but it doesn't take into account your own abilities and skills and so sometimes you just got to go with what got you to the dance even if it isn't the best/fastest way to go.
__________________
Thom "The Rocketman" Belmont
Belmont Racing Team - BRT
Last edited by rocketman; 2009.12.12 at 08:49 PM.
Reason: spelling
Grant, you don't get the point... I am not saying that it is not faster or better than a king-pin set-up, but what I am saying is that the front end would be better without bump steer... If you still believe that it isn't, you probably never will, after all you are a PN guy, all the way...
I try to be objective as I can with my evaluations, be it a Reflex, PN, Atomic or 3 Racing part. I look for the best parts, regardless of brand. This is delicate topic for me because we do make a front end, and I try not to bring comparisons for this reason, because I respect Philip very much and his product line. The truth is, when I find a product that can be improved, I try to manufacture it, if it can't be improved, I simply run it, regardless of brand. If the 03 had not been released, you would have definitely seen a geometry correction kit for the PN front. I was already working on a different steering rack with adjustable tie rods to adjust toe and ackerman.
Fact is, my findings are consistent with everyone's on the PN front end. Be it Reflex drivers (who I tried to get to run the front for touring cars), forum members, or drivers from all over the US and Europe, the consensus is they feel the PN front makes their car wander more than the king-pin type front, not that it makes them slower lap per lap.
I am not debating the capability of an advanced driver to control this car quicker around the track with a PN double A-Arm system than with a king-pin type. Especially when you run as much scrub as you do with +3 front wheels. While you have an unorthodox driving style, car dynamics, are car dynamicss and what I am trying to get to is that for all practical applications, bump steer is not a desirable characteristic when engineering a front end. You eliminate it and you have a TRULY superior product that is both more consistent and faster around the track.
Basically, in a perfect world, a PN front with bumpsteer vs a PN front without bumpsteer the one without bumpsteer would be king.
About the 03; yes the 03's still bump in slightly, but it is a MASSIVE improvement over the PN front and the cars run much better and tracks straighter than a PN front ever has. I think I speak for the majority of drivers out there that this yields a more consistent car that is easier to drive lap in- lap out, all while still gaining the advantages of increasing camber.
I am not even going to touch on the active toe. You truly believe this is beneficial, and I will have to respectfully disagree with this as this is at odds with all theory and implementation of car design as well as with my 20+ years of experience racing RC cars.
i guess it just boils down to my driving style.....
i guess it just boils down to my driving style.....
Show em your driving style at the Tekin 1/28th Nats.....
__________________
GF Racing Team Driver
Dream Killr Racing.....Live the Dream
"The ultimate measure of a man is not where he stands in moments of comfort, but where he stands at times of challenge and controversy."
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